Install LAMP + phpMyAdmin on 7 CentOS 7 \/ RHEL<\/p>\n
The main attention is now replaced by the MySQL database MariaDB, and therefore representative of the LAMP Linux + Apache + MariaDB + PHP up.<\/p>\n
System: The new CentOS 7 using systemd, thus some instruction vary ; now use alternative MariaDB MySQL as the database software, there will also be installed directly MariaDB.<\/p>\n
Set HOSTNAME<\/p>\n
echo “HOSTNAME=clusterserver3.rmohan.com” >> \/etc\/sysconfig\/network
\nhostname “clusterserver3.rmohan.com”<\/p>\n
INSTALL VIM<\/p>\n
yum -y install vim<\/p>\n
To make a color display code, and also supports line numbers and mouse positioning mark, you need to edit vim configuration file:<\/p>\n
vim \/etc\/vimrc<\/p>\n
set nu
\nset mouse=a<\/p>\n
update configuration file \/etc\/hosts<\/p>\n
192.168.1.22 clusterserver3.rmohan.com clusterserver3<\/p>\n
remove the dhcp<\/p>\n
systemctl list-unit-files \u2013type=service dhcp<\/p>\n
add timezone<\/p>\n
ln -sf \/usr\/share\/zoneinfo\/Singapore \/etc\/localtime
\ntimedatectl set-timezone Asia\/Singapore ; timedatectl<\/p>\n
yum update<\/p>\n
install http<\/p>\n
yum install httpd<\/p>\n
http:\/\/192.168.1.22<\/p>\n
[root@clusterserver3 ~]# systemctl enable httpd
\nCreated symlink from \/etc\/systemd\/system\/multi-user.target.wants\/httpd.service to \/usr\/lib\/systemd\/system\/httpd.service.
\n[root@clusterserver3 ~]#<\/p>\n
firewall-cmd –add-service=http –permanent
\nfirewall-cmd –add-service=https –permanent
\nfirewall-cmd –zone=public –add-port=22\/tcp –permanent<\/p>\n
systemctl restart firewalld<\/p>\n
firewall-cmd –list-all<\/p>\n
# firewall-cmd –state
\n# firewall-cmd –list-all
\n# firewall-cmd –list-interfaces
\n# firewall-cmd –get-service
\n# firewall-cmd –query-service service_name
\n# firewall-cmd –add-port=8080\/tcp<\/p>\n
install Mariadb<\/p>\n
yum install mariadb-server mariadb<\/p>\n
systemctl enable mariadb<\/p>\n
[root@clusterserver3 ~]# systemctl enable mariadb
\nCreated symlink from \/etc\/systemd\/system\/multi-user.target.wants\/mariadb.service to \/usr\/lib\/systemd\/system\/mariadb.service.
\n[root@clusterserver3 ~]#<\/p>\n
top -u mysql<\/p>\n
systemctl start mariadb
\nsystemctl stop mariadb
\nsystemctl restart mariadb
\nsystemctl disable mariadb
\nsystemctl is-active mariadb<\/p>\n
Test MariaDB server in the local virtual machine CentOS 7 system, every time execution mysql command will always encounter “ERROR 2006 (HY000): MySQL server has gone away” error. Calibration of the time within a virtual machine, the aforementioned problems hours. Is there a necessary connection between the two is not to say, temporarily be recorded.<\/p>\n
Execute an instruction casually in MariaDB, whether create database or just flush privileges or, before the implementation of the results will show a similar instruction such output,<\/p>\n
MariaDB [(none)]> select now ();
\nERROR 1305 (42000): FUNCTION now does not exist
\nMariaDB [(none)]><\/p>\n
mysql_secure_installation<\/p>\n
[root@clusterserver3 ~]# mysql_secure_installation
\n\/usr\/bin\/mysql_secure_installation: line 379: find_mysql_client: command not found<\/p>\n
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MariaDB
\nSERVERS IN PRODUCTION USE!\u00a0 PLEASE READ EACH STEP CAREFULLY!<\/p>\n
In order to log into MariaDB to secure it, we’ll need the current
\npassword for the root user.\u00a0 If you’ve just installed MariaDB, and
\nyou haven’t set the root password yet, the password will be blank,
\nso you should just press enter here.<\/p>\n
Enter current password for root (enter for none):
\nERROR 1045 (28000): Access denied for user ‘root’@’localhost’ (using password: YES)
\nEnter current password for root (enter for none):
\nOK, successfully used password, moving on…<\/p>\n
Setting the root password ensures that nobody can log into the MariaDB
\nroot user without the proper authorisation.<\/p>\n
Set root password? [Y\/n] Y
\nNew password:
\nRe-enter new password:
\nSorry, passwords do not match.<\/p>\n
New password:
\nRe-enter new password:
\nPassword updated successfully!
\nReloading privilege tables..
\n… Success!<\/p>\n
By default, a MariaDB installation has an anonymous user, allowing anyone
\nto log into MariaDB without having to have a user account created for
\nthem.\u00a0 This is intended only for testing, and to make the installation
\ngo a bit smoother.\u00a0 You should remove them before moving into a
\nproduction environment.<\/p>\n
Remove anonymous users? [Y\/n] y
\n… Success!<\/p>\n
Normally, root should only be allowed to connect from ‘localhost’.\u00a0 This
\nensures that someone cannot guess at the root password from the network.<\/p>\n
Disallow root login remotely? [Y\/n] y
\n… Success!<\/p>\n
By default, MariaDB comes with a database named ‘test’ that anyone can
\naccess.\u00a0 This is also intended only for testing, and should be removed
\nbefore moving into a production environment.<\/p>\n
Remove test database and access to it? [Y\/n] y
\n– Dropping test database…
\n… Success!
\n– Removing privileges on test database…
\n… Success!<\/p>\n
Reloading the privilege tables will ensure that all changes made so far
\nwill take effect immediately.<\/p>\n
Reload privilege tables now? [Y\/n] y
\n… Success!<\/p>\n
Cleaning up…<\/p>\n
All done!\u00a0 If you’ve completed all of the above steps, your MariaDB
\ninstallation should now be secure.<\/p>\n
Thanks for using MariaDB!
\n[root@clusterserver3 ~]#<\/p>\n
MariaDB [(none)]> show global variables like ‘max_allowed_packet’;
\n+——————–+———+
\n| Variable_name\u00a0\u00a0\u00a0\u00a0\u00a0 | Value\u00a0\u00a0 |
\n+——————–+———+
\n| max_allowed_packet | 1048576 |
\n+——————–+———+
\n1 row in set (0.00 sec)<\/p>\n
MariaDB [(none)]><\/p>\n
MariaDB [(none)]> set global max_allowed_packet=1024*1024*16;
\nQuery OK, 0 rows affected (0.00 sec)<\/p>\n
MariaDB [(none)]> show global variables like ‘max_allowed_packet’;
\n+——————–+———-+
\n| Variable_name\u00a0\u00a0\u00a0\u00a0\u00a0 | Value\u00a0\u00a0\u00a0 |
\n+——————–+———-+
\n| max_allowed_packet | 16777216 |
\n+——————–+———-+
\n1 row in set (0.00 sec)<\/p>\n
MariaDB [(none)]>
\ntime in centos 7
\nyum -y -q install ntp
\nntpdate -s ntp.org
\ndate<\/p>\n
MariaDB [(none)]> select now();
\n+———————+
\n| now()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 |
\n+———————+
\n| 2016-01-03 16:18:47 |
\n+———————+
\n1 row in set (0.00 sec)<\/p>\n
MariaDB [(none)]>
\nType ‘help;’ or ‘\\h’ for help. Type ‘\\c’ to clear the current input statement.<\/p>\n
MariaDB [(none)]> select now();
\n+———————+
\n| now()\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 |
\n+———————+
\n| 2016-01-03 07:15:34 |
\n+———————+
\n1 row in set (0.00 sec)<\/p>\n
MariaDB [(none)]><\/p>\n
yum install php<\/p>\n
cp \/etc\/php.ini ~\/confbak\/php.ini.bak
\ncp \/etc\/httpd\/conf.d\/php.conf ~\/confbak\/httpd\/conf.d\/php.conf.bak
\ncp \/etc\/httpd\/conf.modules.d\/10-php.conf ~\/confbak\/httpd\/conf.modules.<\/p>\n
vi \/etc\/php.ini<\/p>\n
error_reporting = E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR
\ndisplay_errors = Off
\nlog_errors = On
\nmax_execution_time = 300
\nmemory_limit = 32M<\/p>\n
yum install php-mysql<\/p>\n
yum install http:\/\/dl.fedoraproject.org\/pub\/epel\/7\/x86_64\/e\/epel-release-7<\/p>\n
yum install phpmyadmin<\/p>\n
cp \/etc\/httpd\/conf.d\/phpMyAdmin.conf ~\/confbak\/httpd\/conf.d\/phpMyAdmin.conf.bak<\/p>\n
#Alias \/phpMyAdmin \/usr\/share\/phpMyAdmin
\n#Alias \/phpmyadmin \/usr\/share\/phpMyAdmin<\/p>\n
<Directory \/usr\/share\/phpMyAdmin\/>
\n………
\n<\/Directory><\/p>\n
Require ip 127.0.0.1
\nRequire ip ::1<\/p>\n
cp \/etc\/phpMyAdmin\/config.inc.php ~\/confbak\/config.inc.php.bak
\nvi \/etc\/phpMyAdmin\/config.inc.php<\/p>\n
$cfg[‘blowfish_secret’] = ‘password’<\/p>\n
systemctl restart httpd<\/p>\n","protected":false},"excerpt":{"rendered":"
Install LAMP + phpMyAdmin on 7 CentOS 7 \/ RHEL<\/p>\n
The main attention is now replaced by the MySQL database MariaDB, and therefore representative of the LAMP Linux + Apache + MariaDB + PHP up.<\/p>\n
System: The new CentOS 7 using systemd, thus some instruction vary ; now use alternative MariaDB MySQL as the database […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[73],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/5543"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5543"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/5543\/revisions"}],"predecessor-version":[{"id":5544,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/5543\/revisions\/5544"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}